package day03;
//命令解析程序
import java.util.Scanner;
public class CommandBySwitch {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        System.out.println("请选择功能：1.存款 2.取款 3.转账 4.退出");
        int command = scan.nextInt();
        switch (command) {
            case 1:
                System.out.println("存款业务...");
                break;
            case 2:
                System.out.println("取款业务...");
                break;
            case 3:
                System.out.println("转账业务...");
                break;
            case 4:
                System.out.println("退出成功");
                break;
            default:
                System.out.println("请选择正确的功能");
                }

                //改写成 if...else if结构
                if (command == 1) {
                    System.out.println("存款业务...");
                } else if (command == 2) {
                    System.out.println("取款业务...");
                } else if (command == 3) {
                    System.out.println("转账业务...");
                } else if (command == 4) {
                    System.out.println("退出成功");
                } else {
                    System.out.println("请选择正确的功能");
                }
        }
    }

